Tread attachment for wheel-rims



H. N. EDENS. TREAD ATTACHMENT EoR WHEEL RIMS.

APPLICATION FILED )ULY 6 1918.

Patented July 29, 1919.

l, UMTED, sTATns PATENT OFFICE.

HENRY N. EDENs, or NEW HOLSTEIN, WISCONSIN, ASSIGNon To JOHN LAUsoN MANUFACTURING C QlVHPANY,` OF NEW HOLSTEIN, WISCONSIN.

TREAD ATTACIIIi/IENTv non. WHENLI ,IIvIs.

To all wlw/mJ 'it may concern land exact description thereof.

This invention relates to ground attach-4 ments for 'wheel rims andhas primarily for itsV objectV the* provision of a simple and economical detachablemeans for increasing the ground surface of a vehicle wheel.

A more specific object of the invention resides in the manner of attaching the traction means to the wheel.

A further object is to provide a rim eX- tension and a tracking flange adapted to enngage each otherupon being attached to `a thereby effecting a secure 'grip upony rim,

I the wheel rim.

With theseand other objects in view,

' whichV will beapparent as the description proceeds, my invention resides in the novel features of construction, combination and arrangement of parts as hereinafter described and 'defined bythe appended claims, it being understood that changes in the preoise embodiment might be made by those skilled in the art without departing from the spirit of the invention.

This invention in one practical form in which it may be embodied is illustrated in the accompanying drawing in which:-

Figure 1 is an elevational view of a section of the wheel rim showing the invention attached thereto.

Fig. 2 is a transverse section through the rim, indicated by the line 2 2 of Fig. 1.

Fig. 3 is a detailed view of the rim extension showing the manner in which its opposite ends are connected. l

Fig. 4 is a detailed view of the attaching clip, and

Fig. 5 is a transverse sectional modified form of the invention.

Referring now more particularly to the View of a accompanying drawings, 1 designates a type of wheel rim commonly used upon tractors and other forms of heavy duty vehicles. Shrunk upon the rim or otherwise suitably secured thereto, so as to form an integral I part, is a tracking rib 2. The rim 1 is fui:d

Specification of Letters Patent. i Patented July 29, 1919.

Application led July 6, 1918. Serial No. 243,510.

ther provided with the ordinary supporting spokes 3.

In many instances, due to the condition of the ground, over which a tractor is con1- pelled to work, it is desired to increase the ground `surface of its wheels, and should the tractor be used in farming or hauling upon soft ground, it is further desirous 'to attach a tracking flange to prevent side skidding of the vehicle and insure proper trackinfr of the wheels.

n order to meet these requirements, the present invention has been devised in which 4 is a tracking flange adapted to encircle the rim' l and abut the tracking rib 2. In the present instance, the inner peripheral surface 5 of the tracking iznge is slightly.

cammed to permit the edge of a rim exten; Sion 6 to engage thesame, wherebyit acts as a wedge between the flange 4 and the wheel rim 1.

In the event that which will not extend above the tracking rib 2.

As best shown in Fig. 3, the rim extension 6 has its opposite ends slightly spaced apart and secured together at their outer edge by a bracket 7. The ends adjacent the wedging edge of the rim are left free in order to permit that portion of the extension, disposed over the rim, to be contracted, thereby insuring a secure grip which will prevent circumferential shifting of the extension upon the rim, and relieve strain which might otherwise be thrown upon the spokes. At suitable intervals, about the extension 6, are riveted or otherwise suitably secured, brackets 8 which carry the threaded clips 9 adapted to engage the spokes 3 and provided with nuts 10.

In order to assemble the 'ound attachment upon a wheel rim, tte flange 4 is placed over the rim and abuts the tracking rib 2. The extension is then dis osed upon the rim and the clips 9 engage with the spokes. It will be readily seen that upon turning up the nut 10 upon the clips, the extension 6 will be drawn upon the rim, and its wedging edge, which engages the cam surface 5, will be securely grip ed to the rim and at the same time will orm a it is desired to attach a v run eXtension to the wheel, without the *wedgel to securely lockV the ange 4 against circumferential movement.V g

While I have shown and described the inner peripheral surface of the flange 4 as f cammed, it will be understood that the same resultsmight. be accomplShed by tapering.;

or camming the wedging edge 5V of the eX- tension 6, vas shown in Fig. 5,*and leaving'l the innerperiphery of the ring 4 straight t or parallel with the rim.

VFrom the foregoingdes'cription, Vtaken in connection with the drawings, it will be seen that an ecient and simple ground attachment has been devised, which is readily attached or detached from a rim when desired.l

attachment comprising a tracking flange having an inner peripheral cam surface,V a rim extension adapted to form a wedge rbetween the tracking flange and wheelA rim, andmeans tor drawing the @Xtellsion upon the rim.

3v. In combination with' a Wheelrim havl ing a trackng'rb, an attachmentcomprsj ing artracklng flange adapted to encircle the rim and abutfthe tracking rib, a, rim exten- Sin 'adapted to form agwedge betweengthe flange, a Y

isconsin.

attachment comprising Va tracking Hangeadapted to ahnt the tracking rib, said tracking flange having an' inner peripheral cam surface, a rim extensionpadaptedrto form a wedge between dthe tracking flange and wheel rim, and means for drawing the extension upon the rim.

5. In combination with a Wheel rim having a tracking rib and supporting.spokes'an A Y attachment comprising a tracking flange adapted to abut the tracking rib, said tracking Hange having an inner.peripheral cam surface,'a rim extension adapted vtoV form a Wedge 'between-the tracking flange and-wheel Y rim, brackets secured tothe extension, and

clips carried by the bracket and, lgaging the wheel spokes. Y Y

6., In'combillation with a Wheel rim, :an

attachment comprising aj tracking flange adapted to encircle the rim, and a rim e2;-y tension adapted t0 .form a Wedge between the tracking 112mg@ and rim, Said extension having its opposite. ends adjacent the Wedging edge free and spaced apart; to permit the Same to; be @entracted upon the rim..

In testmonythat l claim the foregoing i I have hereunto sjetnrnyv hand atNewHolf. Stein, in the. @cantv 0f Calumet and State .ein

f N.. Y

VGiudei 01, this Patilt meyber-rolteindifgo-r five. Vcents. earthy .addressing thi?` QQ/ihmissimie of latente '.Washngtn, 1?.. G. Y 1 t 

